Search Results for the EPA National Library Catalog

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Potential for biomagnification of contaminants within marine and freshwater food webs / 1984
Potential for Long-Term Persistence of the Red Tide Dinoflagellate 'Ptychodiscus brevis' in North Carolina Coastal Waters. 1989
Potential Frameworks for Reporting on Ecological Condition and Ecosystem Services for the 2011 National Wetland Condition Assessment. 2011
Potential Impact of Stratospheric Ozone Depletion on Marine Ecosystems. 1989
Potential intertidal habitat restoration sites in the Duwamish River Estuary 1991
Potential Remediation Approaches to the GE-Pittsfield-Housatonic River Site 'Rest of River' PCB Contamination. 2012
Potential species for phytoremediation of perchlorate / 1999
Power-Cost Efficiency of Eight Macrobenthic Sampling Schemes in Puget Sound, Washington, USA. 1989
Pre-Impoundment Biological Survey of Stockton Reservoir-Sac River, Missouri, August, 1968. 1969
Predicting 2,4-Dichlorophenoxyacetic Acid Ester Transformation Rates in Periphyton-Dominated Ecosystems. 1983
Predicting Chemical Accumulation in Shoots of Aquatic Plants. 1991
Predicting future introductions of nonindigenous species to the Great Lakes / 2008
Predicting future introductions of nonindigenous species to the Great Lakes / 2008
Predicting Modes of Toxic Action from Chemical Structure: An Overview. 1994
Predicting the Toxicity of Bulk Sediments to Aquatic Organisms with Aqueous Test Fractions: Pore Water versus Elutriate. 1991
Prediction of ecological effects of toxic chemicals : overall strategy and theoretical basis for the ecosystem model / 1983
Prediction of Substrate Removal Rates of Attached Microorganisms and of Relative Contributions of Attached and Suspended Communities at Field Sites. 1988
Preliminary Application of HSPF (Hydrologic Simulation Program--FORTRAN) to the Iowa River Basin to Model Water Quality and the Effects of Agricultural Best Management Practices. 1983
Preliminary Ecological Study of Areas to be Impounded in the Salt River of Kentucky. 1971
Preliminary Evaluation of Potential Effects of Bathymetric Alterations of the Chesapeake and Delaware Canal on Striped Bass. 1992
Preliminary investigation of the role of aquatic macrophytes in heavy metal uptake from water with coal particles / 1980
Preliminary Investigation of the Role of Aquatic Macrophytes in Heavy Metal Uptake from Water with Coal Particles. 1980
Preliminary report on selected and developed indices for use in the detection, measurement and assessment of estuarine nutrient enrichment. 1979
Preliminary Results of an Aquatic Plant Study with Halogenated Pyridine Derivative. 2012
Preliminary Results of an Aquatic Plant with Halogenated Pyridine Derivative. 2012
Preliminary study of the influence of chlorinated wastewater effluents on the biological life of selected rivers and streams in Vermont 1981
Present Approaches to Toxicity Testing - A Perspective. 1977
Pressurized Proportional Diluter for Aquatic Toxicological Studies. 1980
Principles and methods for determining ecological criteria on hydrobiocenoses proceedings of the European Scientific Colloquium / 1976
Principles and Practices of Aquatic Law. 2017
Principles of Toxicity Testing with Marine Unicellular Algae. 1988
Priorities for Coastal Ecosystem Science. 1994
Prioritization of Pesticide Active Ingredients (PAIs): Based on Commonly Known Environmental Characteristics. 1990
Probabilistic ecological risk assessment of tributyltin in the Chesapeake Bay watershed : final report / 1998
Probable causes of trends in selected living resources in the Galveston Bay system 1993
Problem organisms in water : identification and treatment. 1995
Problem organisms in water : identification and treatment. 2004
Problems of aquatic toxicology, biotesting and water quality management : proceedings of USA-Russia symposium, Borok, Jaroslavl Oblast, July 21-23, 1992 / 1996
Problems of aquatic toxicology, biotesting, and water quality management : proceedings of USA-USSR symposium, Borok, Jaroslavl Oblast, July 30-August 1, 1984 / 1986
Problems of aquatic toxicology, biotesting, and water quality management : proceedings of USA-USSR symposium, Borok, Jaroslavl Oblast, July 30-August 1, 1984 / 1986
Procedure for estimating concentrations of lipophilic compounds in river water and fish. 1996
Procedures for the derivation of equilibrium partitioning sediment benchmarks (ESBs) for the protection of benthic organisms : compendium of Tier 2 values for nonionic organics / 2008
Procedures for the derivation of equilibrium partitioning sediment benchmarks (ESBs) for the protection of benthic organisms : dieldrin / 2003
Procedures for the derivation of equilibrium partitioning sediment benchmarks (ESBs) for the protection of benthic organisms : Endrin / 2003
Procedures for the derivation of equilibrium partitioning sediment benchmarks (ESBs) for the protection of benthic organisms : metal mixtures (cadmium, copper, lead, nickel, silver, and zinc) / 2005
Procedures for the derivation of equilibrium partitioning sediment benchmarks (ESBs) for the protection of benthic organisms : PAH mixtures / 2003
Procedures for the derivation of equilibrium partitioning sediment benchmarks (ESBs) for the protection of benthic organisms compendium of Tier 2 values for nonionic organics / [electronic resource] : 2008
Procedures for the quarantine of live aquatic animals : a manual / 2008
Proceedings 2000
Proceedings : biostimulation - nutrient assessment workshop / 1975
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